Gear-case construction.



E. W. STULL.

GEAR CASE CONSTRUCTION.

APPLICATION FILED MAR131, 1910.

Patented July 28, 1914.

o o D /7 THE NORRIS PETERS co.. PHOTO-LIITHIQ. WASHINGTON. D. c.

Figure 1 is an end I UNITED A ES PATENT OFFICE j,

vn'iatrncr'r w. s'rULL, or rrtwnuxnn, Wisconsin,

I r0 ALLIS-CI-IALMEBS Manuraoruanve. CQMPANY,

WARE.

Assrenon, is; ASSIGNMENTS,

A oonronarron, or DELA- GnAit-cAsncoNsrnUo'rIoN.

To all whom it may concern Be it known that I, EM nrr W. STULL, acitizen of the UnitedStates, residing at Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented certain new and usefulImprovements inGear-Case Constructions, of which the following is afull, clear, and exactspecification. 31

My invention relates to gear casings and supporting means therefor.

Heretofore in the construction of some motor frames, especially in thecase of comprcssors, the gear casings and field magnet frames have beencast integral with each other. In this practice it is usual to cast thefield magnet frame and also the gearing casing in two halves or parts.Where the gear and motor casing are cast integral the lower half of thegear casing is. cast integral with the lower half of the motor casing,and similarly the upper half of the gear casing with the upper half ofthe motor casing. In other constructions, more particularly in railwaymotors, gear casings are formed and supported entirely independent ofmotor casings.

There are other simple and practical ways for connecting and supportingmotor and gear casings, and it is the object of my invention to providenovel supporting means for motor and gear casings of dynamoelectricmachines.

My invention further consists in certain novel detailsof constructionand combinations and arrangements of parts to be described in thespecification and particularly set forth in the appended claim.

In the accompanying sheet of drawmgs,

elevation, partly in section, of a railway motor casing embodying myinvention; Fig. 2 is a fragmentary top elevation of the same; and, Figs.3 and 4 are detailed end views showing means of support between themotor and gear casings. Located within and extending through a motorcasing 10 is an armature shaft 11 which is provided at one end with agear wheel 12. Meshing with this gear 12 is another gear 13 of greaterdimensions which is mounted on a car wheel axle 1 1. The ear wheel axlel4: and shaft 11 are provided with bearings located in bearing housings16, and also wlth 011 containing receptacles 17 havmg covers 18. Thegear wheels 12 and 18 are inclosed'by divisible casing' 19 Sp fi a i n61? Letters Tatented J ,u1y 28, I App1icationfi1edMa1'ch'31, 1910.Seria1No.55 2, 692.r 1 I which is preferably formed of sheet metalpieces riveted together. he casing is preferably divided into two parts,an upper 20 and a lower 21, thetwo -parts slightly overlapping, theupper part being on the outside. The side sheets and end strips of metaland rivets. The gear casing 19 has an opening which is provided with acover 26" and is solocated that the gears may be in-, spected where theymesh. The gear casing is further provided with brackets 25 and- 34:which are securedthereto and at opposite ends thereof.

The motor casing 10 is provided with two 10101601310118 26 and '27respectively, which are located on opposite sides of themotor.

Passing through these projecting portions 26 and 27 are bolts 28, whichassist in retaming the two parts of] the casing inla fixed pos1t1on.Secured to the projection '26, preferably by'bolts 29, is a supportingmember 30,-which extends from the motor casing to the gear casing 19.The supporting member 30 is preferably L-shaped and reinforced by itsflanged portion 31. That part of the supporting member 30 which engagesthe gear casing is located directly under the bracket 25 and is securedto the -fwhich form the. gear casing aresecurely fastened together byangle iron pieces 22 upper half 20 of the gear casing by a bolt 7 32. Atthe opposite side of the motor casmg and extending between said casingand the gear casing is another supporting member 33. This "member 33consists of a straight bar and is secured to the other projection 27 ofthe motor casing and also to the bracket 34 in a manner similar to. thatof the other side. The lower part of the gear casing is fastened to theupper part 20 of the gear casing by bolts 35. It is seen that the lowerpart '21 of the gear casing is secured to the upper part 20thereofentirely independent of the supporting members extending fromthemotor casing to the gear. casing. If it is, desiredto remove thelower part of the gear casing to inspect the gears it can be donewithout disturbing the upper half of the gear casing, supports 30 and33, or any other parts.

It is to be noted that-the motor and gear connected together by thesupporting members'S'O and 33 respectively which support the casingsmutually. By means of this arr'angement the two practically independentparts are held together in a rigid manner to form a unit which providesfor easy inspection and has many desirable commercial advantages. V IThere may be many modificatlons of the precise form herein shownand'describedg,

and I aim in my claim to cover all such modifications Which do notinvolve a departure from the spirit and scope of my invent ioni What Iclaim as new is:

In combination a supporting structure, a

gear casing having divisible parts and ad- 'casing'is secured to saidbrackets, said means being independent of said supporting members. A

In testimony whereof I affix my signature, in the presence of twoWitnesses.

' EMMETT W. STULL.

Witnesses:

CHAS. L. BYRON, ROB. E. STOLL.

' iiopies of this patient may be obtained tor five cents each, byaddressing the Commissioner of Patents. Washington, D. G.

